He didn't say in MLS. He said in sports. Despite what some may think, the Premier League, as well as every other sports league outside the MLS bubble do actually exist. So his statement is, in point of fact, accurate, even though it may be an unpopular trend to some. Not saying which model is better or worse, just that there are several leagues with increasing foreign ownership.
If anything, the statement you're defending comes out of a bubble. The examples we got are "QSI and PSG, City Football and Man City, Americans at Liverpool, Man U, & Arsenal, Chelsea & Monaco". So. A handful of giant teams, playing in big cities, in a handful of leagues, out of the thousands, thousands, and hundreds, respectively. If you want to say that fans of teams playing in big cities should expect it, fine. If you want to say that this is what most fans should expect, no dice. Let's run down what percentage of the French, German, Japanese, and literally almost every other league's ownership is foreign. Despite what some may think, other leagues outside of the Champions League and Premier League do exist.